Boiler flue structure capable of preventing high-temperature burnthrough

Abstract

The utility model relates to the technical field of flues, in particular to a boiler flue structure capable of preventing high-temperature burnthrough, which comprises a flue assembly, a cooling assembly and a protection assembly, the flue assembly comprises a flue body, an interface flange and a solenoid, the interface flange is arranged below the flue body, the solenoid is arranged above the flue body, and the cooling assembly is connected with the cooling assembly. According to the boiler flue structure capable of preventing high-temperature burnthrough, a flue assembly comprises a flue body, a connector flange and a solenoid. The flue body can be conveniently connected with other equipment through the arrangement of the connector flange, and the cooling assembly comprises a cover body, a liquid carrying assembly, a liquid distribution ring, a liquid supply box, a liquid supply pump, a liquid inlet pipe and a liquid return pipe. The liquid supply pump conveys cooling liquid in the liquid supply box to the liquid distribution ring through the liquid inlet pipe, and the liquid distribution ring evenly distributes the cooling liquid to the liquid carrying assembly. The heat dissipation fins, the heat dissipation ring and the shell in the liquid carrying assembly can effectively absorb heat of the flue body and transmit the heat to the cooling liquid, and therefore cooling of the flue body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of flues, in particular to a boiler flue structure which is resistant to high-temperature burning. Background Art

[0002] The flue is a structure for exhausting smoke from a boiler. The application number is CN202321760051.5, which discloses a boiler flue structure that is resistant to high-temperature burnout, comprising: a flue body, a protective shell fixedly installed on the outer wall of the flue body, a water pump fixedly installed on the top of the fixing ring, a water inlet pipe fixedly connected to the right end of the water pump, a cooling water pipe fixedly connected to the left end of the water pump, a fan fixedly installed on the top of the fixing ring, and an air outlet installed through the bottom of the fixing frame. The utility model is equipped with a protective shell, and the water pump draws cold water from the water reservoir through the water inlet pipe into the cooling water pipe to cool the outer wall of the flue body. At the same time, the fan is started to blow air downward along the air outlet nozzle to cool the cooling water pipe and the flue body. The water flows through the outlet pipe into the water reservoir to cool it down, and then enters the cooling water pipe through the water pump to circulate and cool the flue body, thereby preventing the flue body from being burned through due to excessive flue gas temperature.

[0003] During actual use, it was found that the protective shell of the above structure was not convenient to disassemble and assemble. At high temperatures, some impurities were easily retained in the cooling water pipe, causing it to become blocked, thereby affecting the service life of the equipment. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a boiler flue structure that is resistant to high-temperature burn-through.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler flue structure that is resistant to high-temperature burn-through, comprising a flue assembly, a cooling assembly and a protective assembly, wherein the flue assembly comprises a flue body, an interface flange and a spiral tube, an interface flange is provided below the flue body, and the spiral tube is provided above the flue body, wherein the outer diameter of the interface flange is larger than that of the flue body, and the outer diameter of the spiral tube is smaller than that of the flue body, the cooling assembly comprises a cover, a liquid carrying assembly, a liquid distribution ring, a liquid supply box, a liquid supply pump, a liquid inlet pipe and a liquid return pipe, and a sleeve is provided on the flue body. There are the cover body and the liquid-carrying component, the cover body is provided at both the upper and lower ends of the liquid-carrying component, a liquid distribution ring is provided in the cover body located above, the liquid supply box is provided on the side of the interface flange, one end of the liquid supply pump is connected to the liquid supply box, the other end of the liquid supply pump is connected to one end of the liquid inlet pipe, the other end of the liquid inlet pipe passes through the cover body located above and is connected to the liquid distribution ring, the two ends of the liquid return pipe are respectively connected to the cover body and the liquid supply box located below, the protective component is threadedly connected to the spiral tube, and the protective component is provided above the cover body located above.

[0008] In order to stably carry liquid and conduct heat, the utility model has been improved. The liquid carrying component includes heat dissipation fins, a heat dissipation ring, a shell and a connecting plate. The heat dissipation ring is provided with several groups of heat dissipation fins at one end close to the flue body, and several groups of connecting plates are provided at one end of the heat dissipation ring away from the flue body. The inner wall of the shell is connected to the connecting plate, and the heat dissipation ring and the shell are arranged concentrically.

[0009] Preferably, the heat dissipation fins are T-shaped.

[0010] In order to prevent water from entering the smoke exhaust pipe from above, the utility model is improved in that the protective assembly includes a nut, a bracket and a protective cover, the upper and lower ends of the bracket are respectively connected to the protective cover and the nut, and the nut is threadedly connected to the spiral pipe.

[0011] In order to prevent the air pressure in the liquid-carrying assembly from being too high, the utility model is improved in that an exhaust valve is further provided on the end of the upper cover away from the liquid inlet pipe.

[0012] Preferably, the outer diameter of the cover is larger than that of the nut, and the exhaust valve is arranged on the periphery of the nut.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a boiler flue structure that is resistant to high-temperature burn-through and has the following beneficial effects:

[0015] The flue structure of the boiler that is resistant to high-temperature burn-through, the flue assembly includes a flue body, an interface flange and a spiral tube. The setting of the interface flange facilitates the connection of the flue body with other equipment. The cooling assembly includes a cover, a liquid carrier assembly, a liquid distribution ring, a liquid supply tank, a liquid supply pump, a liquid inlet pipe and a liquid return pipe. The liquid supply pump transports the coolant in the liquid supply tank to the liquid distribution ring through the liquid inlet pipe, and the liquid distribution ring evenly distributes the coolant to the liquid carrier assembly. The heat dissipation fins, heat dissipation ring and shell in the liquid carrier assembly can effectively absorb the heat of the flue body and transfer the heat to the coolant, thereby achieving cooling of the flue body;

[0016] When some impurities are easily retained in the flue at high temperatures, the cover and liquid carrier components can be removed for cleaning and maintenance. The cover and flue body are sleeved together, making installation and removal more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a partial schematic diagram of the structure of the utility model;

[0019] Figure 3 This is a schematic top view of the liquid-carrying component of the utility model structure;

[0020] Figure 4 This is a bottom view of the cover body of the utility model structure located at the top.

[0021] In the figure: 1. Flue body; 2. Interface flange; 3. Screw tube; 4. Cover; 5. Liquid distribution ring; 6. Liquid supply box; 7. Liquid supply pump; 8. Liquid inlet pipe; 9. Liquid return pipe; 10. Heat dissipation fins; 11. Heat dissipation ring; 12. Shell; 13. Connecting plate; 14. Nut; 15. Bracket; 16. Protective cover; 17. Exhaust valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4A boiler flue structure that prevents high-temperature burn-through includes a flue component, a cooling component and a protective component. The flue component includes a flue body 1, an interface flange 2 and a spiral tube 3. The flue body 1 is provided with an interface flange 2 below, and the spiral tube 3 is provided above the flue body 1. The outer diameter of the interface flange 2 is larger than that of the flue body 1, and the outer diameter of the spiral tube 3 is smaller than that of the flue body 1. The cooling component includes a cover 4, a liquid carrier component, a liquid distribution ring 5, a liquid supply box 6, a liquid supply pump 7, a liquid inlet pipe 8 and a liquid return pipe 9. The flue body 1 is sleeved with the cover 4 and the liquid carrier component. Component, the cover body 4 is provided at both ends of the upper and lower ends of the liquid-carrying component, a liquid distribution ring 5 is provided in the cover body 4 located above, the liquid supply box 6 is arranged on the side of the interface flange 2, one end of the liquid supply pump 7 is connected to the liquid supply box 6, and the other end of the liquid supply pump 7 is connected to one end of the liquid inlet pipe 8, the other end of the liquid inlet pipe 8 passes through the cover body 4 located above and is connected to the liquid distribution ring 5, the two ends of the return pipe 9 are respectively connected to the cover body 4 and the liquid supply box 6 located below, the protective component is threadedly connected to the spiral tube 3, and the protective component is arranged above the cover body 4 located above.

[0024] The interface flange 2 is connected to the boiler, and the interface flange 2 provides stable support for the flue body 1. The flue body 1 is also provided with a spiral tube 3. The cover body 4 without the liquid distribution ring 5 is first sleeved on the flue body 1, and then the bottom of the liquid-carrying component is plugged into the cover body 4, and then the cover body 4 with the liquid distribution ring 5 is plugged into the liquid-carrying component again. When exhausting smoke, start the liquid supply pump 7, and the liquid supply pump 7 sends the coolant in the liquid supply tank 6 into the liquid inlet pipe 8, and then outputs it from the opening below the liquid distribution ring 5. The coolant takes away the heat and finally flows into the liquid supply tank 6 from the return pipe 9 to complete the cooling operation. In this embodiment, the flue body 1 is also provided with a spiral tube 3 connected to the protective component, which has the effect of preventing rainwater in outdoor conditions, and it can also prevent foreign matter from entering from the flue body 1.

[0025] In this embodiment, the liquid carrier component includes heat dissipation fins 10, a heat dissipation ring 11, a shell 12 and a connecting plate 13. The heat dissipation ring 11 is provided with several groups of heat dissipation fins 10 at one end close to the flue body 1, and several groups of connecting plates 13 are provided at the end of the heat dissipation ring 11 away from the flue body 1. The inner wall of the shell 12 is connected to the connecting plate 13, and the heat dissipation ring 11 and the shell 12 are arranged concentrically. The heat dissipation fins 10 are T-shaped, and the heat dissipation ring 11 is provided with several groups of T-shaped heat dissipation fins 10 at one end close to the flue body 1. These heat dissipation fins 10 increase the contact area with the flue body 1, can quickly absorb the heat of the flue body 1, and at the same time flow out of the gas channel. The cover body 4 on the upper and lower sides can be provided with a hemisphere at the end away from the liquid carrier component to facilitate gas flow to further take away heat. The heat dissipation ring 11 is provided with several groups of connecting plates 13 at the end away from the flue body 1, the inner wall of the shell 12 is connected to the connecting plate 13, and the heat dissipation ring 11 and the shell 12 are arranged concentrically. The coolant flows in the space between the heat dissipation ring 11 and the housing 12 , absorbing the heat transferred from the heat dissipation fins 10 .

[0026] During actual use, the protective assembly includes a nut 14, a bracket 15, and a protective cover 16. The upper and lower ends of the bracket 15 are connected to the protective cover 16 and the nut 14, respectively. The nut 14 is threadedly connected to the screw 3, and the nut 14 is threadedly connected to the screw 3 above the flue body 1, fixing the bracket 15 and protective cover 16 above the flue body 1. The protective cover 16 can prevent water from entering the exhaust pipe from above and avoid damage to the interior of the flue. The bracket 15 connects the protective cover 16 and the nut 14, providing stable support for the protective cover 16. The protective assembly is tightly connected to the flue body 1 and will not loosen or fall off due to external factors such as wind and rain, ensuring the stability of the protective effect.

[0027] During the cooling process, the air pressure within the upper cover 4 may fluctuate due to the flow and temperature of the coolant. An exhaust valve 17 is also provided at the end of the upper cover 4 away from the liquid inlet pipe 8. The outer diameter of the cover 4 is larger than that of the nut 14. The exhaust valve 17 is located around the nut 14. When the air pressure within the cover 4 is excessive, the exhaust valve 17 automatically opens. The exhaust valve 17 is located at the end of the cover 4 away from the liquid inlet pipe 8 and around the nut 14. The exhaust valve 17 exhausts excess air, preventing damage to the liquid-carrying assembly caused by excessive air pressure. When the air pressure returns to normal, the exhaust valve 17 automatically closes.

[0028] At high temperatures, impurities can easily remain inside, so cleaning and maintenance can be performed. Since the cover 4 and flue body 1 are nested together, with the cover 4 installed at both ends of the liquid-carrying assembly, you can first remove the protective assembly from the spiral tube 3, then remove the upper cover 4 and the liquid-carrying assembly from the flue body 1. Clean the liquid-carrying assembly to remove impurities and ensure the normal operation of the cooling system. After cleaning, reinstall the cover 4 and liquid-carrying assembly onto the flue body 1, reconnect the protective assembly, and restore normal operation of the boiler flue.

[0029] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0030] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A boiler flue structure that prevents high-temperature burnout, comprising a flue assembly, a cooling assembly, and a protective assembly, characterized in that: The flue assembly comprises a flue body (1), an interface flange (2) and a spiral tube (3); the interface flange (2) is provided below the flue body (1); the spiral tube (3) is provided above the flue body (1); the outer diameter of the interface flange (2) is larger than that of the flue body (1); the outer diameter of the spiral tube (3) is smaller than that of the flue body (1); the cooling assembly comprises a cover (4), a liquid-carrying assembly, a liquid distribution ring (5), a liquid supply box (6), a liquid supply pump (7), a liquid inlet pipe (8) and a liquid return pipe (9); the cover (4) and the liquid-carrying assembly are sleeved on the flue body (1); the liquid-carrying assembly is provided at both the upper and lower ends. The cover body (4) is provided, and a liquid distribution ring (5) is provided in the cover body (4) located above. The liquid supply box (6) is provided on the peripheral side of the interface flange (2). One end of the liquid supply pump (7) is connected to the liquid supply box (6), and the other end of the liquid supply pump (7) is connected to one end of the liquid inlet pipe (8). The other end of the liquid inlet pipe (8) passes through the cover body (4) located above and is connected to the liquid distribution ring (5). The two ends of the liquid return pipe (9) are respectively connected to the cover body (4) located below and the liquid supply box (6). The protective component is threadedly connected to the spiral tube (3). The protective component is provided above the cover body (4) located above.

2. The boiler flue structure resistant to high-temperature burn-through according to claim 1, characterized in that: The liquid-carrying component comprises heat dissipation fins (10), a heat dissipation ring (11), a shell (12) and a connecting plate (13); the heat dissipation ring (11) is provided with a plurality of groups of heat dissipation fins (10) at one end close to the flue body (1); the heat dissipation ring (11) is provided with a plurality of groups of connecting plates (13) at one end away from the flue body (1); the inner wall of the shell (12) is connected to the connecting plates (13); and the heat dissipation ring (11) and the shell (12) are arranged in concentric circles.

3. The boiler flue structure resistant to high-temperature burn-through according to claim 2, characterized in that: The heat dissipation fins (10) are T-shaped.

4. The boiler flue structure resistant to high-temperature burn-through according to claim 3, characterized in that: The protective assembly comprises a nut (14), a bracket (15) and a protective cover (16); the upper and lower ends of the bracket (15) are respectively connected to the protective cover (16) and the nut (14); and the nut (14) is threadedly connected to the spiral tube (3).

5. The boiler flue structure resistant to high-temperature burn-through according to claim 4, characterized in that: An exhaust valve (17) is also provided at one end of the upper cover (4) away from the liquid inlet pipe (8).

6. The boiler flue structure resistant to high-temperature burn-through according to claim 5, characterized in that: The outer diameter of the cover body (4) is larger than that of the nut (14), and the exhaust valve (17) is arranged on the peripheral side of the nut (14).

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